Nickel Grease Error?

[zach attack]

Found this nickel while coin roll hunting and it looks like a grease error to me. Im not an expert with error coins and would like to know your opinion on the coin. Value? Thanks, HH.

 

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[zach attack]

 

[ILikeMoney]

I think it looks like it's been dipped in acid.

 

[zach attack]

Thanks for commenting, I really have no idea if it is an error or someone who decided to have a experiment with it.

 

[omga747]

Yup, I'd say acid too

 

[zach attack]

Thanks for your opinion, I'm probably going to put it back in circulation since its nothing